Sentences with phrase «snail species»

One kiddie pool aquarium + one very dedicated scientist + a couple decades of work = one freshwater snail species that otherwise would probably be extinct.

The snails in question are of the giant African land snail species Achatina fulica, which can grow shells up to 20 centimeters long.

Attempts to control schistosomiasis by focusing on the snail hosts date to the 1950s, but earlier efforts involved either molluscicides — poisons — or the introduction of non-host snail species to eat or compete with the hosts.

We have added new data to the manuscript comparing the reproductive stages of snail species between the islands.

The cichlid, Neolamprologus furcifer, raises its brood in rocky nests near the lake shore — a habitat shared with various snail species.

Some snail species can survive trips through fish guts, but this is the first one known to pass through birds.

This image shows one of the last remaining amastrid land snail species on O'ahu, Laminella sanguinea, in the Waianae Mountains.

«We showed, based on extrapolation from a random sample of land snail species from all over the world, and via two independent approaches, that we may already have lost 7 percent (130,000 extinctions) of all the animal species on Earth,» said Robert Cowie, research professor at PBRC and co-author of the two studies.

Only a single individual of a Hawaiian snail species is known, and most of archipelago's 50 other remaining snail species may go extinct soon

The team behind the discovery has named the minute gastropod Acmella nana (pictured, next to 12 - point font), and described it — along with 47 other new Bornean snail species — in an article published online today in ZooKeys.

Not exact matches

This is the greater danger for our species, to try to pretend... that we do not need to satisfy our curiosity [The Medusa and the Snail].

Maybe for the few freshwater shellfish that are dangerous or certain species of snail, that are very dangerous.

New research has found faucet snails, an invasive species, are more numerous than earlier estimates had determined, including populations in lake Ontario and the St. Lawrence River, and pose a larger threat than originally thought.

Analyses of the geographic ranges of 3235 species of reef fish, corals, snails, and lobsters revealed that between 7.2 % and 53.6 % of each taxon have highly restricted ranges, rendering them vulnerable to extinction.

They find the fossil bed rich with dozens of species of marine invertebrates, such as crabs, snails, clams, sea urchins, large flat oysters and ammonites, as well as fish teeth and scales.

Jellison and colleagues from the UC Davis Bodega Marine Laboratory collected ochre sea stars and black turban snails — two common species along the Pacific coastline — from tide pools on the Bodega Marine Reserve.

Native to the U.S. West Coast, the well - traveled snail became an invasive species in Japan, and now has returned to America on Japanese debris.

Scientists from Oregon State University's Hatfield Marine Science Center confirmed the presence of dozens of species native to Japanese coastal waters — including barnacles, starfish, urchins, anemones, amphipods, worms, mussels, limpets, snails, solitary tunicates and algae — that were on a large floating dock in Japan that washed ashore at Agate Beach near Newport, Oregon in June 2012.

The nearly 400 creatures pictured here include roughly 200 species of fish, crabs, worms, shrimp, algae, snails and other marine invertebrates.

The paleontologists Niles Eldredge and Stephen Jay Gould studied lakes in East Africa and on Caribbean islands looking for Darwin's gradual change from one species of trilobite or snail to another.

Cone snails and horseshoe crabs are exactly the kinds of species that people tend to dismiss, seeing no utility in them, no connection to human need.

The pattern of mollusk loss — species disappearing, then diversifying, followed again by decline — tells him that the sea continued to transgress periodically during the Hell Creek time, altering drainages and other aspects of the landscape and making it impossible for freshwater clams and snails to thrive.

Closer scrutiny revealed the spores to belong to a new species of microsporidian in the genus Steinhausia — persuasive enough evidence for Cunningham and Daszak to conclude that the parasite finished off the snails.

In the Mexican Caribbean, inhabit several species of snails.

The newly discovered species belongs to a genus of minute air - breathing land snails that have lost visual orientation and are considered to be true eutroglobionts, or exclusive cave - dwellers.

«Not only does the level of protection provided vary by species, but the smallest crabs were defending the coral from coral - eating snails, a threat that larger crabs ignored.»

Two years ago, Alexander Weigand described the cave - dwelling, Thorn Snail relative of these Spanish species from a plunging 950m - deep chasm in the Velebit Mts.

Scientists discovered a new species of a peculiar cave - dwelling snail in one of the 20 deepest cave systems in the world, Lukina Jama - Trojama in Croatia.

The new species Zospeum tholussum is a miniature and fragile snail, with a beautifully shaped dome - like translucent shell.

When species such as the giant African snail (right), zebra mussel or Nile perch relocate, they trash the neighborhood in no time.

To make their map, Roberts and his colleagues charted the known geographic ranges of 3235 species, including reef fish, corals, snails, and lobsters.

Species of murex (a genus of Mediterranean sea snail) were highly valued in Roman times because of a rich purple dye that could be extracted from the living creature.

But when that species is in the encyclopedia, you can type in «powerful fungicides,» «snails,» «tropical Asia» and...

New York snail invades San Francisco Bay and a San Francisco snail invades New York Harbor, the alpha diversity in both locations has increased, but the beta diversity has decreased, because the two environments now share two species.

If a New York snail invades San Francisco Bay and a San Francisco snail invades New York Harbor, the alpha diversity in both locations has increased, but the beta diversity has decreased, because the two environments now share two species.

Dempsey created commemorative temporary tattoos mourning the losses of three obscure extinct species - the Florida fairy shrimp, the oblong rock snail and St. Helen's giant earwig — and made posters of models wearing the tattoos.

After filling each with 800 liters of pond water, they added two species of snails that spread the schistosomiasis parasite, algae for the snails to eat, and two kinds of predators — crayfish and water bugs.

Most of the species were mollusks, including marine snails, nudibranchs and oysters.

Most species were invertebrates, including snails, worms and sea anemones.

A new species of worm - snail is rather snotty.

In the 1980s this species, which feeds on molluscs, was used to control snails that host parasites in catfish ponds, and though it too escaped to rivers, it is generally confined to the deep South.

One species of land snail actively avoids crossing roads, even narrow, unpaved ones.

So little of it has been explored, she says, and it is so much harder than on land to see what is going on that there is no way to be sure that mining is not extinguishing species; we haven't had time to discover the snail darters and spotted owls.

A report in today's Proceedings of the National Academy of Sciences shows that in one venomous snail, the evolution of poisons is occurring faster than protein evolution in any other known animal species.

The team focused on the most diverse group of Hawaiian land snails, known as the family Amastridae, of which 325 species have been recognized — all known only from Hawai'i.

The researchers observed an abundance of different life - forms, including thousands of shrimp, four species of anemones, several snails and crab (see image).

And to date, biologists studying other species have seen venom genes evolve at a breakneck pace: The conotoxins employed by cone snails, for example, are known to mutate rapidly.

In a new study recently published in the journal Global Biogeochemical Cycles, scientists of Kiel University (CAU) with colleagues from GEOMAR Helmholtz Centre for Ocean Research Kiel and international partners from the USA, New Zealand, and Great Britain studied marine benthic shell - forming organisms around the world in relation to the chemical conditions they currently experience — with a surprising result: 24 percent, almost a quarter of the analyzed species, including sea urchins, sea stars, coralline algae or snails, already live in seawater unfavorable to the maintenance of their calcareous skeletons and shells (a condition referred to as CaCO3 - undersaturation).

Platydemus manokwari, the New Guinea flatworm, consumes land snails and thus endangers endemic species.

Meanwhile, reduced oxygen circulation has forced one species of snail, Tiphobia horei, which lived as deep as 984 feet a century ago, to move to depths of 328 feet or less.